In poultry industry, animal breeding, greenhouses and
vegetable stores a significant amount of fans with
asynchronous motors is used to create a microclimate.
The fan speed of the fan should be regulated in order
to improve the efficiency, so the multispeed motors are
used for the fan drives. Line produced two-speed motors
with a proportion of the poles number 1:2 have a
polar-switched Dahlander stator winding. Two-speed
motors with a proportion of the poles number 3:2 and
4:3 have only one stator winding which is poleswitched
by the method of amplitude phase shift keying.
A drawback of the windings is that they have different
energy indicators at different spin rates. In order
to create rational diagrams with switching according to
the number of poles, which is multiple of three, it is
proposed to implement a polyphase MMF modulation
of the three-phase winding. As a result of the study,
there were procured the stator windings at 4 and 6
poles, which enabled to change the spin speed of the
motor in the fan drives without breaking the drive
power circuit by the scheme Δ / ΥΥ
The article presents the results of studying the effect of
different lengths of fruit vines with the same load
wintering buds of bushes on the yield and quality of
Moldova grapes. It was found that the biological
indicators of fruiting Moldova grapes improved by
lengthening fruit vines, taking into account weather
conditions. Shortening the vines increases germination
and fruitfulness degree base buds and reserve buds.
Productivity is increased by lengthening fruit vines. It
is determined by the degree of fruitfulness buds of the
vine, the development of floscules of wintering buds,
bunch and berries weight, number of berries in
bunches. The optimum is pruning vines to 10-12 buds.
Harmonious taste, weight of bunches and berries,
transportability factor fixed high yield of grapes
standard (85,6-86,4%) with different length of fruit
vines. The highest productivity of leaves makes
pruning fruit vines to 10-12 buds. The strength of
shoot growth and volume growth of bushes reduced at
an elongation of the fruit vines. The more moderate
growth of shoots observed at long (10-12 buds)
pruning vines. There is no significant difference to the
degree of maturation of shoots with different length
vines. In order to increase the yield of Moldova grapes
in the central zone of the Krasnodar region expedient
cut fruit vines to 10-12 buds
The article gives the results of the study of the texture
of the grapes and biochemical characteristics of red
wine grape varieties of Cabernet Sauvignon, Cabernet
Franc, Merlot, Sapeari, Tsimladar, Pinot Noir for the
production of juice of direct extraction and blending.
The studied varieties in terms of the structure of the
cluster may be divided into three groups of blackpinene
(21.1), Cabernet Franc and Tsimladar (18.7 -
17.5), Cabernet Sauvignon, Merlot, Saperavi (16.5 -
16.8) , and bunches of addition in terms of two groups
- Tsimladar (17.6), Cabernet - Sauvignon and other
(15.6 - 16.4). The structural component of grapes varieties
ranged from 5.2 to 5.9, berry index - from 62.1 to
83.4, the output of the wort from 74.2 to 76.3%. The
content of sugars and acids in the berries of all varieties
is favorable for the production of beverages. The
largest Tartaric acid content was found in the juice of
the varieties of Cabernet Sauvignon, Pinot Black,
malic acid - in the juice of varieties Saperavi, Merlot,
Tsimladar, citric acid - in the juice Tsimladar varieties,
Cabernet Sauvignon, Saperavi. The ratio of tartaric
acid to the content of the apple juice Cabernet Sauvignon
was 2.9: 1, Cabernet Franc 2.6: 1, Pinot Black
2.5: 1, Merlot and Tsimladar 1.6: 1, 1.1 Sapevari: 1.
According to the content of potassium cations, sodium,
magnesium and calcium there were chosen three varieties
of Cabernet Sauvignon and Cabernet Franc. The
lowest content of potassium and magnesium cations
was in the variety of Tsimladar, Sodium – in the varieties
Merlot and Saperavi, calcium – in Saperavi. Excellent
tasting commended for juices was given to
Cabernet Sauvignon, Saperavi, Tsimladar, good – to
Cabernet Franc, Merlot, Pinot black. Best blending
juice obtained by mixing the juice of the grape of the
varieties of Cabernet Sauvignon and Pinot black
70:30, Saperavi and Pinot black 50:50. From the
grapes of produced varieties, we can produce juice and varietal by name ampelographic variety and blended to
extend the range
Improving the technology of alfalfa cultivation and
increasing its productivity for the Kuban region
have great practical significance nowadays. The
research of proper environmental and economical
systems of fertilizers that provide balanced nutrition
plays an important role in the growing of crops. As
a result, we have found that for specific soil and
climatic conditions when using optimal doses of
mineral fertilizers it is possible to have stable high
yields of good quality alfalfa
In the leached black soils of the foothill zone of the
Kabardino-Balkarian Republic on the territory of
training experimental plant of FSBEI HE
Kabardino-Balkarian state agricultural university
named after V.M. Kokova we have studied the
effect of soil and climatic conditions of area of
cultivation and application of micro – macro
fertilizers, plant growth regulators and biological
products on the crops of lentils, their impact on the
efficiency and quality. It is proved that in general,
the natural conditions of the foothill zone are
favorable for cultivation and obtaining high yields
of major crops. The analysis of meteorological
conditions of the area (typical for the whole area)
shows that there are great reserves and
opportunities to obtain high and stable yields of
lentils grains. These morphological, genetic and
agrochemical parameters of leached chernozem
growing zones suggest the soil favorable to the
growth and development of lentils. On average,
during the years of studies, the number of plants on
which we had marked tubercles, on the example of
Rauza varieties in the background variant, was
63.7%; the use of the drug called Agropon C in
combination with sodium selenite increased by
15.2% the number of plants with root nodules.
Increasing the number of plants with root nodules
was accompanied with increasing the number and
weight of nodules per plant by 8.1 pc. and 10.1 mg.
respectively. The highest yield - 2.66 t/ha under
experimental conditions was obtained in the form
of joint use of the drug Agropon C and sodium
selenite with a seeding rate of 2.2 million viable
seeds per hectare, which is higher than the
reference version for this seeding rate by 0.46 t/ha
or 17.3%. The maximum value indicators of protein content in the seeds and collecting the
protein per unit area reached with the use of joint
application of Agropon C and sodium selenite,
where we achieved the seeding rate of 2.2 million
of germinating seeds per hectare and made up
29.6% and 787 kg/ha, respectively
In our country, great influence is given to the
production and consumption of agricultural animals'
meat with high consumer qualities. In this regard, the
livestock producers, particularly pigs, are to increase
production and improve product quality. Works on
using some natural mineral complexes - bentonite and
zeolites as a source of macro - and trace elements are
performed. The aim of the research is to study the
effects of bentonite feeding with free access on the
meat productivity and hygienic meat quality of young
pigs for fattening. Best effect on the slaughter indexes
of fattening gilts had bentonite feeding with free
access that resulted in significant superiority of the
animals in the experimental group over the control
counterparts on pre-slaughter live weight, slaughter
weight, chilled carcass weight, slaughter yield, carcass
length, the "muscle" eye area and the backgammon
weight. More favorable effect in the longest muscle on
the dry matter and protein synthesis was provided by
bentonite feeding with free access. Due to this, the
gilts of the experimental group were in significant
advance of their control counterparts in concentration
of dry matter and protein in meat. Along with this, the
longest muscle of young pigs on fattening in the
experimental group had the highest protein value, as
according to the protein-qualitative indicator the
animals of this group were in significant advance of
the control counterparts. Feeding bentonite clay with
free access had a strong detoxifying effect that is
against control counterparts of gilts in the experimental
group showed the significant reduce of lead, zinc and
cadmium concentrations in the meat
For further increasing pork production and to increase
its quality it is necessary to provide complete and
balanced feeding of young pigs for fattening. The
special place takes the issue of satisfying their
physiological needs in macro and micronutrients. The
most cost-effective step in these circumstances is using
bentonite clays as natural mineral supplements. The
aim of this work was to study the effect of the addition
of bentonite of Zamankulskaya field on the energy
growth, digestibility and the digestibility of nutrients
of the diet of young pigs. According to the results of
the survey, the best productive effect was when
ensuring free access to the bentonite, so that the young
pigs of the 3rd experimental group vs control group had
significant superiority according to gross and average
daily live weight gain and feed products. According to
the results of scientific and economic experience, it
was found that with free access to the bentonite best
economic and useful indicators were observed in the
animals of the 3rd experimental group against the
control analogs, as they had significant superiority in
terms of absolute live weight gain and feed
consumption per unit of production. During the
physiological exchange of experience the most
beneficial effect on the hydrolysis of complex organic
compounds had bentonite feeding with free access of
pigs. The result was a significant superiority of the
experimental animals over the control ones in
coefficients of digestibility of dry matter, organic
matter, crude protein, crude fat and NFE. To improve
the digestibility and absorption of nutrients in the diet
of young pigs it is advisable to feed them with
bentonite clay as natural mineral supplements with free
access
The article analyzes the state of the domestic beekeeping.
It is proposed, as a paradigm of the industrial
beekeeping, to use honey and pollination systems.
Over the past 25 years, because the hard economic
reforms in the public sector, there was almost double
reduction of honey collection. Russian beekeeping is in
the hard situation because of the low yields and the use
of outdated technologies. Russia's share in the global
honey market does not exceed 1 %. A more viable
was apiaries of private households. Beekeepers receive
a basic income from the sale of honey. Meanwhile, in
developed countries more than 60% of the income of
integrated use of honeybees account for pollination
activities. In modern conditions of the Russian vector
of development of beekeeping should be its production
and technological re-equipment, improving its bioecological
principles and socio - economic transformation
of the infrastructure sector. Using mobile honey-
pollination systems, which provide bees with feed
conveyor due to the frequent movement of the apiary,
honey plant and beekeepers can reduce the cost of
manual labor for loading and unloading hives. In the
Kuban Agrarian University we designed the pavilion
design (RF patent number 2,284,103 ), awarded with a
silver medal of Concours Lepine (France, Paris ). Using
a mobile pavilion allows to conduct all production
functions: honey and pollination production and reproduction,
ensuring the competitiveness of the industry
The article presents results of the studies that
obtained because of the long-term experience of the
Department of Agricultural Chemistry of Kuban
State Agrarian University. We have found the
optimal dose of micronutrients at different levels of
mineral nutrition, to achieve maximum yield of
green mass of alfalfa quality. We have calculated the
dynamics of the accumulation of nutrients in plants
throughout the growing season
The use of physical factors for preplant stimulation
of seeds increases vigor, germination and improves
the yield of agricultural products. One of the effective
ways to improve seed grain quality is to impact
on the seeds using physical factors, in particular, an
alternating electromagnetic field of industrial frequency
of 50 Hz (EMF of IF of 50 Hz). We studied
the impact of EMF of IF of 50 Hz on the energy
germination of mid-ripening spring barley seeds of
promising varieties Vakula, Vikont, Ratnik. Carrying
out the experimental studies we used a laboratory
setup with annular pole points of rectangular
cross section. Our disperse analysis resulted in data
on germinative energy of seeds of spring barley
varieties Vakula, Vikont, Ratnik, which showed that
while treating seeds of spring barley by an alternating
electromagnetic field of industrial frequency of
50Hz, we obtained the best values of germinative
energy of seeds of Variety Vikont with a mode of
processing being equal to W = 16%, T = 2 c, L =
0,03 m